cards for s[Feature]: Add the Working Inverting Flashcards and CheatSheets

[kunalp-singh]

Problem statement

The buttons of Flashcards are right now just for the show and does not contain anything in it.

Proposed solution

I would like to contribute by fixing them and add some well-researched cards and which might really help people in DSA and interviews.
I already works on an AI Interview coach, so i already have few resources that might work in this project.

Screenshots / mockups (if applicable)

No response

Additional context

No response

Checklist

• I searched existing issues and did not find a duplicate
• I am willing to contribute or collaborate on this feature
• I am a GSSoC '25 contributor
• I am a Hacktoberfest '25 contributor

[github-actions]

Thank you for raising this issue!

We'll review it as soon as possible. We truly appreciate your contributions! ✨

Meanwhile make sure you've visited the README.md, CONTRIBUTING.md, and CODE_OF_CONDUCT.md before creating a PR for this. Also, please do NOT create a PR until this issue has been assigned to you. 😊

[kunalp-singh]

@saumyayadav25 can I work on the issue? So, can you assign me the problem?

[SHAKSHIY]

i want to work on this issue, please assign it to me.